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The Cadillac STS . With the largest selection of cars from dealers and private sellers, Autotrader can help find the perfect STS for you.
Autotrader has 17 Used Cadillac STSs for sale, including a 2005 Cadillac STS and a 2005 Cadillac STS V8 w/ Preferred Equipment Group ranging in price from $2,295 to $12,900.